How to Minimise Tax When Selling Your Business: Legal Strategies for UK Owners

The single biggest factor most owner-managers underestimate when planning a business sale is how much of the proceeds they'll actually keep. With capital gains tax rates on business disposals sitting at 18% or 24% depending on your position. And Business Asset Disposal Relief (BADR) offering a reduced 14% rate on the first £1 million of qualifying gains. The difference between good planning and no planning can run into hundreds of thousands of pounds. The strategies that work are legal, well-established, and used routinely by owners who take the time to plan properly. The catch: almost all of them require you to start at least 18–24 months before you complete a sale.

Disclaimer: This article contains general information only and does not constitute financial or tax advice. Every business sale is different. Speak to a qualified UK tax adviser about your specific situation before making any decisions.

Table of Contents

What are the current CGT rates on a business sale?

As of April 2026, the capital gains tax rates applicable to business disposals are as follows:

SituationCGT Rate
Standard rate (higher/additional rate taxpayer)24%
Standard rate (basic rate taxpayer, within basic rate band)18%
BADR qualifying gains (up to £1m lifetime limit)14%
EOT sale (qualifying Employee Ownership Trust disposal)0%
Gain within pension wrapper0%

The annual CGT exempt amount is £3,000. On a £3m gain, the difference between paying 24% with no planning versus 14% on the first £1m and structured planning on the rest is significant. Potentially £300,000 or more, depending on circumstances.

The point is not that you should chase every marginal saving, but that the gap between planned and unplanned disposals is large enough to warrant taking it seriously.

What is BADR and how do you qualify for it?

Business Asset Disposal Relief reduces CGT to 14% on qualifying gains up to a £1 million lifetime limit. It replaced Entrepreneurs' Relief in 2020 and the rate has been stepped up incrementally since then.

To qualify, you must meet all of the following conditions for at least 24 months immediately before the disposal:

  1. You own at least 5% of the ordinary share capital in the company
  2. Those shares carry at least 5% of the voting rights
  3. You are either an employee or officer (director) of the company
  4. The company is a trading company (or holding company of a trading group) not an investment vehicle

A few things trip owners up here. If you've diluted your holding below 5% through share option schemes, restructuring, or bringing in an equity partner, you may no longer qualify without taking corrective action. If you've stepped back from your executive role. Even informally. HMRC may challenge officer status. And if the company holds significant non-trading assets (excess cash, investment properties), it may fail the trading company test.

None of these issues are insurmountable, but they need identifying and addressing well before heads of terms are agreed. A rushed restructuring in the final months of a deal raises red flags with HMRC and rarely achieves what it sets out to do.

How can pension contributions reduce your tax bill?

This is one of the most straightforward strategies available, and one of the most underused.

Employer pension contributions made by the company before the sale reduce taxable profit, which in turn reduces the company's tax charge prior to exit. More importantly for owners selling shares, large personal pension contributions in the years leading up to a sale can significantly reduce your income tax liability during that period. Freeing up more of the sale proceeds to be taxed at CGT rates rather than income tax rates.

The annual pension allowance is £60,000 (2025/26 and 2026/27), though you can use carry forward to contribute up to three prior years of unused allowance. If you've under-contributed in recent years, there may be a meaningful opportunity here.

One further consideration: if you receive a significant cash sum on sale and invest it personally, future investment income will be taxable. A pension wrapper shelters growth from CGT and income tax entirely. This is particularly relevant for owners in their 50s who have a legitimate need for retirement provision.

Does share restructuring before a sale help?

Yes. In the right circumstances and with sufficient time.

The most common restructuring moves ahead of a sale include:

  • Alphabet share classes. Allowing dividends to be paid selectively to family members at lower tax rates during the years before sale
  • Splitting shares with a spouse or civil partner. To utilise their BADR allowance, CGT exempt amount, and potentially their basic rate band (see below)
  • Preference shares and deferred shares. To separate income rights from capital rights ahead of restructuring the shareholder base
  • Holding company insertions. Creating a holding company above the trading entity can facilitate certain deal structures, though this also has CGT implications that need careful handling

The critical point is that HMRC will look at the substance of any restructuring. If shares are transferred to a spouse two weeks before exchange, HMRC is likely to look at whether the arrangement is genuine. Transfers need to have happened well in advance and need to reflect actual economic arrangements. Courts and HMRC have consistently challenged transactions that are clearly motivated by tax avoidance with no commercial substance.

Can you use a spouse or civil partner's allowance?

Transfers of assets between spouses and civil partners are exempt from CGT at the time of transfer. This means that if you transfer shares to your spouse or civil partner before the sale, and they qualify for BADR in their own right, they can access their own £1 million BADR lifetime limit. Potentially saving an additional £100,000 in tax.

Even without BADR, their CGT exempt amount (£3,000), basic rate band, and lower rate taxpayer status (if applicable) can reduce the combined tax bill on the proceeds.

For this to work: the transfer must be genuine, the shares must actually vest with the recipient as beneficial owner, and. If BADR is the goal. The recipient must also meet the 5% shareholding, officer/employee, and trading company tests for 24 months.

What is an Employee Ownership Trust and when does it make sense?

A sale to an Employee Ownership Trust (EOT) allows qualifying business owners to sell a controlling interest (more than 50%) to a trust held for the benefit of employees. Completely free of capital gains tax.

This is a legitimate and increasingly popular exit route, particularly for owners who:

  • Care about the future of their business and workforce
  • Do not have a natural successor or family buyer
  • Want a clean exit without a lengthy trade sale process
  • Are prepared to accept deferred consideration (the trust typically pays over several years from company profits)

The EOT route is not right for every business or every owner. It is not a quick transaction, and the valuation is subject to HMRC scrutiny. But for the right owner, the tax saving. Which can be several million pounds. Is transformative.

What about gift relief for family succession?

If you are passing the business to a family member rather than selling it to a third party, Gift Relief (also known as holdover relief) allows you to defer CGT on the disposal. The gain is effectively passed to the recipient, who will pay CGT when they eventually sell.

This is commonly used in genuine family succession scenarios. Passing shares to a child who will run the business. Rather than as a tax planning device before a commercial sale. HMRC takes a dim view of arrangements that use family transfers as a way of engineering a lower tax outcome on an imminent sale to a third party.

Why does timing matter. And when should you start?

This is the part most owners hear too late. The strategies above. BADR qualification, pension planning, share transfers, restructuring. Cannot be done in the month before you go to market. Most require a 24-month holding period to be effective. Several require professional advice, Companies House filings, and HMRC clearance applications that take months to process.

A sensible planning timeline

  1. 36 months before target sale date. Review shareholding structure, BADR eligibility, pension position, and family succession intentions with a tax adviser
  2. 24–30 months before. Execute any restructuring (share transfers, alphabet shares, holding company insertion if needed). Begin maximising pension contributions
  3. 18 months before. Confirm officer status is maintained, review trading company status, ensure carry-forward pension contributions are deployed
  4. 12 months before. Appoint advisers, prepare management accounts and information memorandum, begin discussions with potential buyers if appropriate
  5. 6 months before. Heads of terms negotiated; tax structuring largely locked in by this point
  6. 0–6 months. Sale and Purchase Agreement, legal completion, proceeds received

The honest message is that if you are already in conversation with buyers, some of these windows have closed. That does not mean nothing can be done. But it does mean the options narrow considerably.

Use our free business valuation calculator

Before you can plan effectively around tax, you need a realistic sense of what your business is worth. Use the free valuation calculator at Succession Group to get an indicative valuation based on your sector, revenue, and EBITDA. It takes under five minutes and gives you a meaningful starting point for planning conversations.

→ Try the free valuation calculator

FAQ

How much tax will I pay when I sell my business in the UK? It depends on your structure and planning. Without relief, CGT is 18% or 24% on gains. With BADR, the rate is 14% on the first £1 million of qualifying gains. An EOT sale can be entirely CGT-free. The variation is significant enough to make professional planning worthwhile well in advance of any sale.

What is the BADR lifetime limit in 2026? The lifetime limit for Business Asset Disposal Relief is £1 million. This means the maximum CGT saving from BADR is currently £100,000 (the difference between 14% and 24% on £1 million).

Can I transfer shares to my spouse before a sale to save tax? Yes, in principle. Transfers between spouses are exempt from CGT at the time of transfer. But for BADR to apply to your spouse, they must independently meet all qualifying conditions for 24 months. Last-minute transfers without genuine commercial substance may be challenged by HMRC.

How do pension contributions help when selling a business? Employer contributions reduce company profits before sale. Personal contributions in the years leading up to a sale can reduce your income tax liability and effectively shelter wealth from future investment taxes within a pension wrapper. The annual allowance is £60,000, with carry-forward available for unused prior-year allowances.

Is an EOT sale genuinely tax-free? Yes. A qualifying sale to an Employee Ownership Trust is free of capital gains tax for the seller. However, the business must meet specific criteria, the EOT must acquire a controlling interest, and HMRC will scrutinise the valuation. Deferred consideration is also the norm, so you do not receive all proceeds upfront.

How early do I really need to start tax planning before a business sale? The honest answer is 24–36 months. Most of the meaningful strategies. BADR qualification, share restructuring, pension carry-forward, spouse transfers. Require time to take effect and time to be credible in HMRC's eyes. Starting later does not mean nothing can be done, but it significantly reduces your options.